Scientist who worked on Enrico...

LEONA MARSHALL LIBBY, 67,

November 13, 1986

SANTA MONICA, CALIF. — LEONA MARSHALL LIBBY, 67, scientist who worked on Enrico Fermi's first nuclear reactor, died Monday. At 23, she was one of the youngest members of and the only woman on the Manhattan Project, which developed the atomic bombs that were dropped on Hiroshima and Nagasaki, Japan, in World War II. Libby, who had a doctorate in physics, was divorced from physicist John Marshall and later married Willard Libby, a Nobel laureate in physics, who died in 1980. She was an adjunct professor of environmental science and engineering at the University of California at Los Angeles.